package cn.zane.designPattern.createPatterns.singletonPatterns.design;

/**
 * @Author: zane
 * @Date: 2025/01/05
 * @Description: 类的内部类(线程安全)
 */
public class Singleton_04 {

    private static class SingletonHolder {
        private static Singleton_04 instance = new Singleton_04();
    }

    private Singleton_04() {}

    public static Singleton_04 getInstance() {
        return SingletonHolder.instance;
    }
}
